CVE-2026-8461

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-18. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

This vulnerability is associated with the file libavcodec/magicyuv.C.

This issue affects FFmpeg before version 8.1.2.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
74%
KEV
Not listed

Published

June 18, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jun 19, 2026
No patch confirmed yet.
generic

#23159 - avcodec/magicyuv: reject slice_height misaligned with chroma vshift - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159

Vendor Advisories for CVE-2026-8461(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatffmpeg-0:6.1.6-1.el9ai2026-07-22redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:4.3.2-0+deb11u2 ... 7:8.1.2-2 (91 versions)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:5.1.3-1 ... 7:9.0.1-1 (59 versions)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:7.1.4-0+deb13u1 (6 versions)7:7.1.5-0+deb13u1
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:8.1.1-4 (15 versions)7:8.1.2-1

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 80× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 284 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-08 22:01 UTCEPSS rescore
  3. 2026-09-06 13:48 UTCEPSS rescore
  4. 2026-09-05 15:31 UTCEPSS rescore
  5. 2026-09-04 05:07 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-09-01 04:40 UTCEPSS rescore
  9. 2026-08-30 20:58 UTCEG score recompute
  10. 2026-08-30 20:58 UTCVendor advisory
  11. 2026-08-30 20:58 UTCGHSA enrichment
  12. 2026-08-30 19:18 UTCEPSS rescore
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-28 21:42 UTCEPSS rescore
  15. 2026-08-27 14:25 UTCEPSS rescore
  16. 2026-08-26 14:47 UTCEPSS rescore
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-25 03:10 UTCVendor advisory
  19. 2026-08-25 03:10 UTCGHSA enrichment
  20. 2026-08-24 15:03 UTCEG score recompute
  21. 2026-08-24 15:03 UTCVendor advisory
  22. 2026-08-24 15:03 UTCGHSA enrichment
  23. 2026-08-24 14:18 UTCEPSS rescore
  24. 2026-08-24 01:38 UTCVendor advisory
  25. 2026-08-24 01:38 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 13:29 UTCVendor advisory
  2. 2026-08-23 13:29 UTCGHSA enrichment
  3. 2026-08-23 01:11 UTCEG score recompute
  4. 2026-08-23 01:11 UTCVendor advisory
  5. 2026-08-23 01:11 UTCGHSA enrichment
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 20:18 UTCVendor advisory
  9. 2026-08-21 20:18 UTCGHSA enrichment
  10. 2026-08-21 08:15 UTCEG score recompute
  11. 2026-08-21 08:15 UTCVendor advisory
  12. 2026-08-21 08:15 UTCGHSA enrichment
  13. 2026-08-20 22:56 UTCEPSS rescore
  14. 2026-08-20 20:12 UTCVendor advisory
  15. 2026-08-20 20:12 UTCGHSA enrichment
  16. 2026-08-20 08:09 UTCEG score recompute
  17. 2026-08-20 08:09 UTCVendor advisory
  18. 2026-08-20 08:09 UTCGHSA enrichment
  19. 2026-08-19 17:04 UTCEPSS rescore
  20. 2026-08-19 07:43 UTCEG score recompute
  21. 2026-08-19 07:43 UTCVendor advisory
  22. 2026-08-19 07:43 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-17 13:47 UTCEPSS rescore
  26. 2026-08-17 09:15 UTCVendor advisory
  27. 2026-08-17 09:15 UTCGHSA enrichment
  28. 2026-08-16 21:13 UTCEG score recompute
  29. 2026-08-16 21:13 UTCVendor advisory
  30. 2026-08-16 21:13 UTCGHSA enrichment
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 14:56 UTCEPSS rescore
  33. 2026-08-16 09:11 UTCEG score recompute
  34. 2026-08-16 09:11 UTCVendor advisory
  35. 2026-08-16 09:11 UTCGHSA enrichment
  36. 2026-08-16 02:15 UTCEPSS rescore
  37. 2026-08-15 21:08 UTCVendor advisory
  38. 2026-08-15 21:08 UTCGHSA enrichment
  39. 2026-08-15 09:05 UTCEG score recompute
  40. 2026-08-15 09:05 UTCVendor advisory
  41. 2026-08-15 09:05 UTCGHSA enrichment
  42. 2026-08-15 01:31 UTCEPSS rescore
  43. 2026-08-14 20:04 UTCVendor advisory
  44. 2026-08-14 20:04 UTCGHSA enrichment
  45. 2026-08-14 08:02 UTCEG score recompute
  46. 2026-08-14 08:02 UTCVendor advisory
  47. 2026-08-14 08:02 UTCGHSA enrichment
  48. 2026-08-13 22:00 UTCEPSS rescore
  49. 2026-08-13 19:59 UTCVendor advisory
  50. 2026-08-13 19:59 UTCGHSA enrichment
  51. 2026-08-13 07:49 UTCVendor advisory
  52. 2026-08-13 07:49 UTCGHSA enrichment
  53. 2026-08-12 18:59 UTCEG score recompute
  54. 2026-08-12 18:59 UTCVendor advisory
  55. 2026-08-12 18:59 UTCGHSA enrichment
  56. 2026-08-12 13:51 UTCEPSS rescore
  57. 2026-08-12 06:56 UTCVendor advisory
  58. 2026-08-12 06:56 UTCGHSA enrichment
  59. 2026-08-11 18:51 UTCEG score recompute
  60. 2026-08-11 18:51 UTCVendor advisory
  61. 2026-08-11 18:51 UTCGHSA enrichment
  62. 2026-08-11 13:43 UTCEPSS rescore
  63. 2026-08-11 06:49 UTCEG score recompute
  64. 2026-08-11 06:49 UTCVendor advisory
  65. 2026-08-11 06:49 UTCGHSA enrichment
  66. 2026-08-11 00:00 UTCEPSS rescore
  67. 2026-08-10 18:46 UTCVendor advisory
  68. 2026-08-10 18:46 UTCGHSA enrichment
  69. 2026-08-10 06:28 UTCVendor advisory
  70. 2026-08-10 06:28 UTCGHSA enrichment
  71. 2026-08-09 18:25 UTCEG score recompute
  72. 2026-08-09 18:25 UTCVendor advisory
  73. 2026-08-09 18:25 UTCGHSA enrichment
  74. 2026-08-09 13:47 UTCEPSS rescore
  75. 2026-08-09 06:23 UTCVendor advisory

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC0xBlackash/CVE-2026-8461
    First seen Jun 26, 2026

    CVE-2026-8461

    Open source ↗
  • GitHub PoCY5neKO/CVE-2026-8461-EXP
    First seen Jun 24, 2026
    Open source ↗
  • GitHub PoCanyanything/CVE-2026-8461-PoC
    First seen Jun 23, 2026
    Open source ↗

Frequently asked(5)

What is CVE-2026-8461?
CVE-2026-8461 is a high vulnerability published on June 18, 2026. An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution. This vulnerability is associated with the file libavcodec/magicyuv.C. This issue affects FFmpeg before…
When was CVE-2026-8461 disclosed?
CVE-2026-8461 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8461 actively exploited?
CVE-2026-8461 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 26.0% of all scored CVEs.
What is the CVSS score of CVE-2026-8461?
CVE-2026-8461 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-8461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8461, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-8461

Explore →

Is Your Infrastructure Affected by CVE-2026-8461?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.